220-1102 1.11 Linux Setup and Commands

Shell/Terminal

Do configs from a command line

Samba

• Implementation of CIFS/SMB networking protocols that support:

  • Windows Server Domain

  • Active Directory

  • Microsoft NT Domains

• With Samba, Unix machines can interoperate with Windows

  • Like file and print server

man

displays help for commands

passwd

change password

ls

list files in a directory

mv

move or rename a file

cp

copy a file

rm

remove a file

mkdir

create a folder

df

display the amount of free storage

ps

displays a list of running processes

rmdir

delete folders that are empty

rm -r

Remove folder that aren’t’ empty

top

displays a list of running processes

find

search for text in files or directory/folder

grep

search with regular expression

dig

troubleshoot DNS

cat

displays the contents of a file

nano

text editor

pwd

lists where you are

ip

display and config a NIC

cd

change your current directory

cd..

go one directory up

cd -

move to the previous directory you where in

chown

change the owner and group of a file

chown syntax

chown “user”: “group” “file name”

chmod

change the permissions of a file or folder for owner/group/everyone

chmod 1,2,3 symbols

1. Execute

2. Write

3. Read

   1. 7 = r+w+x

   2. 6 = r + w only

adduser

create a new user

ls -l

See user and groups for files and folders

dd

copy disk to disk. partition to partition

kill

kill a process

shutdown

shutdown computer

APT

Command line utility used to install/uninstall or upgrade apps in Debian-based distros

apt-get update

Used to update version list of installed apps

apt-get install

Install a new app

Apt-get remove

Uninstall a app

Yellow Dog Updater/YUM

Command line package management utility for Red Hat distros